Butters, K. J. (1987). Case problems in finance (9ª ed.). Irwin.
Cita Chicago (17th ed.)Butters, Keith J. Case Problems in Finance. 9ª ed. Irwin, 1987.
Cita MLA (9th ed.)Butters, Keith J. Case Problems in Finance. 9ª ed. Irwin, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.